Sales communications startup Clearslide has raised $28 million in its second round of funding aimed at opening a New York City office, developing new products, and increasing marketing efforts, the company announced today.

ClearSlide offers its customers cloud-based apps for giving presentations without the friction and hassle associated with services like WebEx and GoToMeeting. On top of phone, web, and e-mail presentation tools, it also gives sales people analytics tools to keep teams on message and establish best practices. Additionally, it has iPad and iPhone apps to help with in-person pitching.

“We focus exclusively on sales teams and supporting inside and outside sales reps,” Al Lieb, the CEO and cofounder of ClearSlide, told VentureBeat. “Traditionally, sales has been ‘every man for himself.’ But our tools are empowering a team-based approach.”

During the past two years, the company has seen strong growth. Lieb (pictured left with co-founder Jim Benton above) said the company’s “users, customers, and revenue” have increased 400 percent each year. The company has “hundreds” of customers, but declined to give a more specific number. Customers include CareerBuilder, Expedia, Gannett, Rackspace, and The Weather Channel.

The new funding round will help the company continue to expand its team and create new native mobile apps. The round was led by Bessemer Venture Partners, with participation by prior investors Greylock Partners and Felicis Ventures. Both Byron Deeter, partner at Bessemer Venture Partners, and John Jack, former CEO of Fortify Software, have joined ClearSlide’s board of directors.

“I was really impressed by ClearSlide’s team, as well as their operating metrics and rate of market adoption,” Deeter said in a canned statement. “There is extremely strong customer demand for their offering and we’re thrilled to work closely with ClearSlide in their next stage of hyper growth.”

San Francisco-based ClearSlide has raised a total of $39 million, including its $11 million first round. It currently has 110 employees. Along with establishing a brand-new New York City office, the company plans to double the total number of its employees using the new funds